Door arrangement



I pecially those that are streamlined, it is necestop surface or edgemay be provided at the bot- 5 1o which is inclined to give astreamlinedeffect. comprisesa fixed guiding stem 8 secured to bosses 45In the particular embodiment of the invention the variable angularitybetween the bottom of the 5 Patented Oct. 25, 1938 I UNITED STATESPATENT ()FFICE DOOR ARRANGEIWENT John L. Hearn, Upper Darby, Pa.

Application March 14, 1935, Serial No. 11,019 i 5 Claims. o1. 2016) Thisinvention relates generally to swinging ture is generally indicated at3'. The door-opendoors and more particularly to doors for locomoing isprovided with any suitable vertical posts tive equipment. 4 specificallyshown as made of structural Z- In' certain types of locomotiveequipment, esshapes. A door sill 5 having a straight horizontal sary toplace a swinging door in a slanting wall. tom of the doorway. H Whilesuch a wall may be located in various parts A door 6 is preferablysupported at its upper of the locomotive cab, yet it is more commonlyand lower ends bya hinge construction generally used in. the frontportion of the hood or cab indicated at "i. As shown in Fig. 3, eachhinge Under such conditions, the lower edge of an or- 9, these bossesbeing provided with studs I0 ,dinary hinged or'swinging door wouldstrike the adapted as'shown in Fig. 2 to pass through one floor of thecab due to the inclined axis about leg of one of the Z'-posts andsecured thereto by which the door would swing and thus prevent nuts orriveted if desired. The door is secured complete opening of the door. toan angle member H supported preferably by It is one object of myinvention to provide an screws 12 to one edge of the door. A guidingboss improved door construction whereby the door I3 is formed preferablyintegral with angle ll may be suitably hinged about its inclined axisand is adapted to slide on hinge pin 8.

and yet will permit complete opening. A fur- Provision of the foregoingtype of hinge at ther object is to provide an improved combinaboth theupper and lower ends of the door will 20 tion whereby the door will beautomatically adpermit the door to swing about an inclined axis justedduring its opening movement so that the while at the same time raisingor lowering dursame is not obstructed in any way notwithstanding theswinging movement as may be detering that the door is so hung that itwould under mined in accordance with the engagement of a normalconditions strike the floor and prevent roller 14 on a suitable arcuatetrack l5. This 5 opening. track is preferably secured to the floor or ifAnother object is to provide improved means desired it may be formed aspart of the floor for holding the door after it is swung to its fullitself, but in any event it is preferable to proopen position, and toaccomplish this by cooperavide a recess IE to receive the roller whenthe tion with the automatically adjustable features door is in its fullyopen position. The roller it- 30 of the construction. self is supportedin any suitable manner on the Other objects and advantages will be moredoor, although as specifically shown herein the apparent to thoseskilled in the art from the roller is preferably supported in a U-shapedfollowing description of the accompanying drawbracket l1 having flangesscrewed to the door.

ing in which: In operation, when the door is in its closed 35 Fig. 1 isa diagrammatic side elevation of the position, the guides l3 which aresecured to the front end of a locomotive cab; door will be adjacent thelowermost bosses 9.

Fig. 2 is a horizontal sectional view taken on the However, as the doorswings open, the outer lower line 22 of Fig. l but showing the door inits corner thereof will move downwardly toward the full closed positionas contrasted to the full open floor in which case roller l4 engagestrack I5, 40 position in Fig. l; whereupon further opening movement ofthe door Fig. 3 is an enlarged perspective view of one of W ll a e thesame to be moved p a y along the hinges employed in my improvedcombinathe axis of the hinge pins 8. In this manner, the tion.adjustable elevation of the door compensates for which I have shownherein merely for the purpose 0100 a d e floor 3 during Opening movementof of. illustrating one specific form among possible t e d Conversely asthe door is closed. the others that the invention might take inpractice, weight thereof will cause the guides l3 to slide I have shownthe invention as applied specifically downwardly on hinge pins 8,thereby insuring to the front end of a locomotive cab generally that thebottom of'the door [3 will be brought 5 indicated at I, although it willof course be uninto substantial parallelism with the door sill 5derstood that the invention has other applicawhen the door is finallyclosed. When the door tions in which it is desired to place a swingingis in its full open position as shown in full lines I door in a slantingwall such as generally indiin Fig. 1, or as shown in dotted lines at l8in Fig.

cated at 2. The floor of the cab or other struc- 2, the roller M willfall into recess l6 and be held 55 It will of course be understood thatvarious changes in details of construction and arrangement of parts maybe made by those skilled in the art without departing from the spirit ofthe invention as set forth in the appended claims.

I claim: 7

1. A door construction comprising, in combination, an inclined wallhaving a doorway therein, a door therefor, pivotal supporting meansforming an extended axis inclined the same as said wall and constitutingthe sole axis about which the door swings, and means for effectingvertical bodily movement of said door solely along said extended axisduring swinging of the door.

2, A door construction comprising, in combination, an inclined wallhaving a doorway therein, a doorvtherefor, a hinge adapted to supportsaid door upon anjaxis inclined the same as said wall and includingaguiding element and a hinge pin element extending therethrough, meansfor normally immovably securing one of .said elements to said wall,means for normally immovably securing the other of said elements to saiddoor whereby the door is adapted to be swung around and maintain auniform lateral relation to the axis of said pin throughout all doormovement and bodily move vertically solely along the axis of saidelements during swinging movement of thedoor, and means for effectingsaid bodily axial movement of the door during swinging thereof.

3. A door construction comprising, in combination, an inclined wallhaving a doorway therein, a door therefor, means for pivotally andvertically movably supporting said door about an axis inclined the sameas said wall and for maintaining a uniform lateral relation between saidaxis and door throughout all movement thereof, and means for effectingvertical bodily movement of the door during swinging thereof.

4. A door construction comprising, in combination, an inclined wallhaving a doorway therein, a door therefor, means for pivotally andvertically movably supporting said door about an axis inclined the sameas said wall and for maintaining a uniform lateral relation between saidaxis and door throughout all movement thereof, means for effectingvertical bodily movement of the door during swinging thereof, and meansfor holding said door in its open position.

5. A door construction comprising, in combination, an inclined wallhaving a doorway therein, a door therefor, means for pivotally andvertically movably. supporting said door about an axis inclined the sameas said wall and for maintaining a uniform lateral relation between saidaxis and door throughout all movement thereof,

means for effecting vertical bodily movement of the door during swingingthereof, means providing a floor recess, and a member carried by thedoor for cooperation therewith to hold the door in open position. i

I 1 JOHN L. HEARN.

